Complete the ordered-pair solutions for the following equation.
x/3 + y = 15
S = {(0, ), (3, ), (6, )
replace the x value with the number given in the ordered pair.
You should be able to do the calculations in your head.
e.g. for the last one
x = 6 , so
6/6 + y = 15
1 + y = 15
y = 14